Home / 475,932.68-712,947.24-286,288.40

Finding the Fourth Proportional to 475,932.68, 712,947.24 and 286,288.40

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Solution

The fourth proportional to 475,932.68, 712,947.24 and 286,288.40 is: 428,860.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,932.68 : 712,947.24 = 286,288.40 : x
  2. Step 2: Convert to fraction form
    475,932.68/712,947.24 = 286,288.40/x
  3. Step 3: Cross multiply
    475,932.68x = 712,947.24 × 286,288.40
  4. Step 4: Simplify right side
    475,932.68x = 204,108,524,624.02
  5. Step 5: Solve for x
    x = 204,108,524,624.02/475,932.68
  6. Step 6: Final answer
    x = 428,860.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.